Fitbit AIR vs watchOS 27: HR and HRV Accuracy Tested

watchOS 27 records HRV for just 4 minutes per hour. Fitbit AIR locks on late and…

Fitbit Air vs Whoop MG in HYROX Accuracy Test

Five devices, one HYROX simulation, and a post-gym pub trip. Fitbit Air produced the widest error…

Fitbit Air Isn’t Truly Accurate: The Spec Nobody Explained

Every review of the Fitbit Air noted the 2-second sampling rate and moved on. Nobody connected…

After a 150 minute ride with Fitbit Air, Whoop and an ECG Strap here’s what I found

A 150-minute Z2 endurance ride with Frontier ZONE, Whoop MG, Fitbit Air, and Amazfit Helio Strap…

Fitbit Air Lost My data – I Want It Back

Fitbit Air lost my open water swim data for hours. The fix is to record swims…

Fitbit Air Arm Sleeve: Excellent Bicep HR Accuracy Confirmed

No Fitbit Air arm band exists yet. This is how I wear the Air pebble on…

Google Health: Fitbit, We have a problem. A design problem.

A $99 screenless tracker has exposed the weak spots in Google's new Fitbit app. Google Health…

Fitbit Air – We Got A Problem – Cadence Lock

Fitbit Air produced cadence-locked HR during an indoor treadmill interval session, averaging ~157 bpm against a…

Fitbit Air vs Amazfit Cheetah 2 Ultra: Bike Sprint HR Test

The Amazfit Cheetah 2 Ultra returns ±3 bpm limits of agreement in a road bike sprint…

Google Fitbit Air – It’s Here

Fitbit Air. The $99 screenless tracker that takes on Whoop with no subscription, Smart Wake, and…

How Much Does It Cost to Make a Fitbit Air?

The $99 Fitbit Air breaks even on hardware at roughly 6 to 10 million units per…

Top 5 Wearable Watersheds. The Fitbit Air Is the Sixth.

There have been five watershed moments in wearable tech since 2012. The Fitbit Air is the…

Why Fitbit Air Is Google Photos for Your Health

The $99 Fitbit Air is not really a wearable. It is Google running the same playbook…

Google Health app: how to get it NOW – before 19 May release

The Fitbit app becomes the Google Health app on 19 May, with rollout completing on 26…